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Letters PotentNo. 62,958, dated llfarci 19, 1867.

IMPROVEMENT IN SELF-'ADJUSTING GUEB-ROLL FOB. PAPER-MILLS.

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'lO ALL WHOM I'l MAY'CONCERN: l

Beit known that I, ROBERT :inl HOWE, of Westbrook, in the county ofCumberland, and State of' .Maine have invented a new andimprovedSelf-Adjusting Guide-Roll for Paperjlllills; and I hereby declare thefollowing to be a full,clear, and exact description thereof, which willenable others skilled in the art'- to which it apportains to constructthe same, reference being made to the accompanying drawings, formingpart of this specification, in which-.-

Figure l shows a. side clevati'onfoi` my invention. p l

l Figure 2, atop plan of the same, lwhich illustra-tes the method ofoperation.

Figure 3, a side view of the pivot on which the roll frame swings.

Figure 4, a vertical section of the socket for the pivot.

Figures 5 and 6, top and bottom plans of' the same.

My invention has for its object the production of a self-adjustingguide-roll for paper-mills, by which the paper, when passing over therolls, shall be less liable to accident than formerly, and by which themovement of the paper over the roll ismade even and regula-r. v I f Myinvention consists of two rollers turning upon shafts or pivot-s, whichshafts are set in uprights or. supports. The upper of these tuo'rollersis so constructed :1s to touch or come in contact with the lower rolleronly, at or n ear the ends thereof.A It consists, secondly, of abcd orbottoni upon which the frame supporting the rollers rests or isattached, and which swings and can revolve upon a pivot fitting a socketset into another base innnediately beneath the swinging or turning bed.l

Particular reference to the drawings will lillustrate' the charactcrandstructure of my invention.

a b show the rollers respectively; e their supports on the swinging baseA; B illustrates the stationary base, having the socket c for theadmission of' the pivot d. My invention-is intended more particularlyfor the passage over it of the"dry felt, so called.` Heretofore a singleroller has been employed, over which the felt passes.l Inthe'forin thusused inconveniences have been experienced, which it is the object of myinvention to obviatc, viz: ln, thus passing. over the roller the feltsometimes moves with greater ease or rapidity upon one side tlian-`uponthe other; this causes an uneven passage, more to one side than theother, so that unless regulated by' the operator. thcvfelt would betorn; thus the attention of the operative is necessary to prevent suchan accident. Hitherto, also, there have been constructed upon one end ofthe base, up'onwhieh the rollers are located, a slot and set-screw, forinstance, as at la, inorder that the operative, loosening the screw,could turn' the rollers 'so as to'restore the felt to an even motion inits passage evcr'the roll.

Myinvention operates as follows: The rollers a b are made enough longerthan the width of the 'felt toallow the saine to pass between them,bet\veen their ends, or' where they are not in contact with each other.v As long as the paper nieves evenly, at both sides, over the roller b,the upper or swinging base romains as seen in iig. l; but when, asisoften'the case,- the fclt slides to either side, and passes from the'oller unevenly, then, touching the upper roller at the ends, where ittouches, oris quite near the under roller, the swing-ing base or bed isswung around, as seen in iig. 2, thus delivering the felt evenly fromthe roller and saving the -paper from any liability to accident by beingtorn. Thus, whenever thc Apaper is passing unevenly over the roller, theswinging of the base or bed A will correct the unevenness, andthisiseil'ected without the superintendence of the operative for suchpurpose. I

`I do not propose to limit. myself to the exact form of socket hereinillustrated, for various well-known I devicesmay be here usefully andconveniently employed. The upper'rollcr may be made as seen'in thedrawing, or, instead of concave, having trucks'on short rollers at itsends.

Whatl claim as my invention7 and desire to secure by Letters Patent, is

The swinging base A, set-upon the stationary base B, as described, andhaving the two rollers a Zz, all constructed, arranged,an-d'operating'as s ct forth and for the purposes specified.

ROBERT L. Howe.'

l Witnesses WILLIAM. I-I-nunv CLIFFORD,

IInNnr C. IIoUs'roN.

